package com.example.portablefortheelderlybackground.config;

import com.example.portablefortheelderlybackground.interceptor.CorsInterceptor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 86187
 * @description: webConfig配置类
 * @date: 2023/4/5 13:44
 */

@Slf4j
@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Resource
    CorsInterceptor corsInterceptor;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(corsInterceptor).addPathPatterns("/**");
    }

    /**
     * 扩展mvc框架的消息转换器
     *
     * @param converters
     */
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        //创建消息转换器对象,重写
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0, messageConverter);
    }
}
